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View Full Version : FOV, 7mm (7-14) vs 7.5mm FE/defished.


Dave in Wales
21st December 2013, 10:48 AM
This was an exercise in FOV only between the Panny 7-14, at the 7 end and the Samyang 7.5 FE, fished and defished.

The camera was in the same place for both shots set at f5.6 with MF.

I used Fisheye Hemi to defish.

Interesting results....I thought.

As I use the 7-14 at the 7 end, 99% of the time, I'm wondering should I keep it.....Opinions please.
If one is looking for UWA then surely the FE defished is the way to go, and at a fraction of the price of the 7-14.

Panny 7-14 at the 7 end.
http://farm6.staticflickr.com/5527/11477305916_8625b01cec_c.jpg (http://www.flickr.com/photos/59378220@N04/11477305916/)
PC210239-RS (http://www.flickr.com/photos/59378220@N04/11477305916/) by Dave in Wales (http://www.flickr.com/people/59378220@N04/), on Flickr

Samyang 7.5 Defished.
http://farm6.staticflickr.com/5524/11477216464_de6b6c81bb_c.jpg (http://www.flickr.com/photos/59378220@N04/11477216464/)
PC210240DF-RS (http://www.flickr.com/photos/59378220@N04/11477216464/) by Dave in Wales (http://www.flickr.com/people/59378220@N04/), on Flickr

Samyang 7.5 FE
http://farm8.staticflickr.com/7334/11477336673_dc664e1bdb_c.jpg (http://www.flickr.com/photos/59378220@N04/11477336673/)
PC210240-RS (http://www.flickr.com/photos/59378220@N04/11477336673/) by Dave in Wales (http://www.flickr.com/people/59378220@N04/), on Flickr

IainMacD
21st December 2013, 11:02 AM
I see what you mean about the FOV Dave and for a less 'linear' shot (e.g. outdoor, landscape) I can see the de-fished option working well, but the horizontal straight lines in shot 2 above don't work for me.

Bikie John
21st December 2013, 12:22 PM
Do you have options for the degree of de-fishing in the software? Shot 2 has some slightly disturbing curvature the other way in the ceiling cornices - I wonder if the correction is slightly too much.

John

StephenL
21st December 2013, 12:48 PM
I like these, and I too have the Samyang. I defish with a profile in Lightroom.

Peter_Hartland
21st December 2013, 11:05 PM
Certainly a more than except able ultra-wide lens if your pocket does not stretch to the Panny 7-14mm

Zuiko
22nd December 2013, 12:29 AM
If you really only use 7mm on the zoom virtually all the time, want to go wider and don't mind the remaining distortion, then the fisheye clearly fits the bill. Keeping both would obviously give greater flexibility but as you say there is an issue of cost.

Gwyver
22nd December 2013, 07:40 AM
I don't think the 'de-fishing' on #2 has been a great success. The distortion on the nearest door frame (LHS) and - as others have mentioned - the cornices is not easy on the eye.
So my vote is to stick with the 7-14.

pdk42
24th December 2013, 03:27 PM
I don't think the 'de-fishing' on #2 has been a great success. The distortion on the nearest door frame (LHS) and - as others have mentioned - the cornices is not easy on the eye.
So my vote is to stick with the 7-14.

I properly defished and cropped, there's nothing to choose between them. I use a profile created by user kenw at DP (Kenw at DPR (http://www.dpreview.com/members/4198728122)) :

http://dl.dropbox.com/u/46420541/Rok7_5_lcp.zip

StephenL
24th December 2013, 03:42 PM
I've had difficulties installing this profile. I can copy it into what I think is the appropriate section, but cannot see it. How did you do it?